Home / 13,720.58-20,562.37-10,005.41

Finding the Fourth Proportional to 13,720.58, 20,562.37 and 10,005.41

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Solution

The fourth proportional to 13,720.58, 20,562.37 and 10,005.41 is: 14,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.58 : 20,562.37 = 10,005.41 : x
  2. Step 2: Convert to fraction form
    13,720.58/20,562.37 = 10,005.41/x
  3. Step 3: Cross multiply
    13,720.58x = 20,562.37 × 10,005.41
  4. Step 4: Simplify right side
    13,720.58x = 205,734,942.42
  5. Step 5: Solve for x
    x = 205,734,942.42/13,720.58
  6. Step 6: Final answer
    x = 14,994.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.